Final answer:
The Virginia Plan called for a bicameral legislature with representation based on state population in both of its two chambers.
Step-by-step explanation:
The Virginia Plan called for a bicameral legislature, which is a legislature consisting of two separate chambers or houses. The lower house would be elected by the people and the upper house would be elected by the lower house, both with numbers proportional to each state's population. This meant that states with larger populations would have greater representation. Designed by James Madison, the Virginia Plan was intended to create a strong national government with separate executive and judicial branches, addressing the weaknesses found in the Articles of Confederation.